Lubricant oil composition

Details Lubricant oil composition Lubricant oil composition

C - Chemistry, Metallurgy

10

M

C10M 139/00 (2006.01) C10M 133/16 (2006.01) C10M 135/18 (2006.01) C10M 141/12 (2006.01)

Patent

CA 2173895

A lubricant oil composition produced by blending (A) a molybdenum-containing friction conditioner, (B) a boron-containing compound and (C) an antioxidant if necessary, with a lubricant base oil, wherein the content of the molybdenum derived from the molybdenum-containing friction condi- tioner is 100 to 2,000 ppm (as the ratio by weight) and the content of the boronderived from the boron-containing compound is 0.015% by weight or more, to the total weight of the composition. The lubricant oil compositions of the present invention are the lubricant oil compositions blended with a molybdenum-containing friction conditioner and a boron-containing compound, and are capable of decreasing coking deposit in internal combustion engines such as automobile engines, which is advantageous for sustaining a fuel-efficiency property for a long term. Hence, the compositions can be used preferably for automobile lubricant oils.

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